FiddlerCore

What is FiddlerCore

FiddlerCore is a .NET Class library you can integrate into your .NET Framework and Mono Framework applications. FiddlerCore allows you to capture and modify HTTP and HTTPS traffic just like Fiddler, without any of the Fiddler UI.

Why FiddlerCore

Battle-tested code used by millions of users of the Fiddler application.

FiddlerCore Documentation

Browsium embraced FiddlerCore to build powerful browser management solutions. With hundreds of thousands of Browsium client installations worldwide, it has proven to be stable, reliable and efficient under a broad range of use and load scenarios. The Fiddler team is incredibly responsive, addressing issues and incorporating a solution that becomes a mainstream supported feature. Our teams also use Fiddler in customer application troubleshooting and creating customer configurations for their Browsium products.